CN101666429A - Light-emitting diode matrix, backlight module with same and liquid crystal display device - Google Patents
Light-emitting diode matrix, backlight module with same and liquid crystal display device Download PDFInfo
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- CN101666429A CN101666429A CN200810214881A CN200810214881A CN101666429A CN 101666429 A CN101666429 A CN 101666429A CN 200810214881 A CN200810214881 A CN 200810214881A CN 200810214881 A CN200810214881 A CN 200810214881A CN 101666429 A CN101666429 A CN 101666429A
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Abstract
The invention discloses a light-emitting diode matrix, a backlight module with the light-emitting diode matrix and a liquid crystal display device. The light-emitting diode matrix is at least dividedinto a first area and a second area, and the light-emitting diode matrix at least comprises a plurality of first light-emitting diode naked cores and a plurality of second light-emitting diode naked cores, wherein the first light-emitting diode naked cores are arranged in the first area and belong to a first specification range; and the second light-emitting diode naked cores are arranged in the second area and belong to a second specification range, and the optical specifications of the first specification range and the second specification range are different. The light-emitting diode matrix, the backlight module and the liquid crystal display device greatly improve the utilization rate of the light-emitting diode naked cores on the same batch of wafers.
Description
Technical field
The present invention relates to a kind of light emitting diode matrix, and particularly relevant for a kind of light emitting diode matrix and have its backlight module and liquid crystal indicator.
Background technology
Existing backlight liquid crystal display module mostly adopts cold-cathode tube (CCFL) to be used as light source.Because cold-cathode tube has advantages such as ripe development and low price, and widely adopt in the market.Yet, cold-cathode tube but have color rendering (Color Rendering) not good, need high drive, mercurous (Hg) and be unfavorable for that environmental protection, luminous frequency spectrum contain ultraviolet light (UV) wave band, toggle speed is slow, fluorescent tube is easily cracked and colourity control such as is difficult at problem.Therefore, the exploitation of new light sources has become one of considerable problem in the development of LCD of new generation.
Over past ten years, because the luminous efficiency of light emitting diode has breakthrough progress, but add that light emitting diode has that high color rendering, low driving voltage, no mercury, luminous frequency spectrum do not contain that ultraviolet light wave band, fast lighting start, solid encapsulation is not easily broken and advantage such as dynamic regulation colourity, thus be regarded as new light source from generation to generation preferred selection one.
Yet epitaxy technique is adopted in the making of light emitting diode naked core, thereby produced light emitting diode naked core can't all be controlled at consistent characteristic on same wafer, for example equal difference to some extent such as brightness or wavelength.Therefore, light emitting diode naked core manufacturer is after extension is finished, the light emitting diode naked core of different optical specification can be distinguished, the differentiation specification limit (bin) that just is commonly called as, and then the light emitting diode naked core of the specification limit that is fit to is offered the client according to customer demand.Therefore, the unit price of light emitting diode has very big association with the quantity of the specification limit of buying.If requirement specification is loose, contain bigger specification limit, price will be relatively cheap; Yet if requirement specification is only contained the light emitting diode naked core of unique small dimension scope, for example certain luminance or wavelength, its price will be very expensive.In addition, in case when the demand of the light emitting diode of this specific small dimension scope enlarges, more necessaryly come in response to, the therefore problem that not only has cost to marry again, more do not have a production with huge production capacity.
Present light-emitting diode (LED) backlight module 100 is selected the light emitting diode naked core 102 of small dimension scope usually for use, for example certain certain luminance (± 5%) or specific wavelength (± 2.5nm) etc.Yet, in such light-emitting diode (LED) backlight module 100, in case the outer light emitting diode naked core 104 of doping specification limit very easily produces the phenomenon of bright dark space piece or color inequality, as shown in Figure 1.But, select for use the light-emitting diode (LED) backlight module design of small dimension scope can make the cost of LED source be difficult to descend, and do not have a production.
In view of this, product design is if can be applied to the light emitting diode naked core of specification limit bigger on the wafer, and is quite favourable for cost benefit.
Summary of the invention
Therefore, purpose of the present invention is providing a kind of light emitting diode matrix exactly, and planning has different zones, and the light emitting diode naked core of different size scope is located in the zones of different.Thus, can improve utilization rate widely with the light emitting diode naked core on a collection of wafer.
Another object of the present invention is that a kind of backlight module is being provided, and has the light emitting diode matrix light source, and this light emitting diode matrix is according to visual impact proportion and product specification and mark off at least two districts, and the light emitting diode naked core of different size scope is set respectively.Therefore, can adopt specification limit,, more can effectively reduce cost so not only have production with wider range on batch wafer.
Another purpose of the present invention is that a kind of liquid crystal indicator is being provided, and the light emitting diode matrix light source production of its backlight module is good, and cost is cheap relatively, and therefore liquid crystal indicator of the present invention has sizable economic benefit.
According to above-mentioned purpose of the present invention, a kind of light emitting diode matrix is proposed, dividing at least has a first area and a second area.This light emitting diode matrix comprises at least: a plurality of first light emitting diode naked cores, be located in the above-mentioned first area, and wherein these first light emitting diode naked cores belong to first specification limit; And a plurality of second light emitting diode naked cores, be located in the second area, wherein these second light emitting diode naked cores belong to second specification limit, and the first above-mentioned specification limit is different with the optical specification of second specification limit.
According to one embodiment of the present invention, the first area is positioned at the central area of light emitting diode matrix, and the second area position and is positioned at the LHA of light emitting diode matrix outside the first area.In addition, first specification limit and second specification limit are used as difference with the emission wavelength and/or the brightness of light emitting diode naked core.
Aforesaid light emitting diode matrix can be applicable in the backlight module, be used as the light source of backlight module, and this backlight module can be applied in the liquid crystal indicator further.
Therefore,, provide a kind of backlight module in addition, the light source and the optic film set that comprise backboard at least, form by above-mentioned light emitting diode matrix according to another object of the present invention.Wherein, the light emitting diode matrix light source is located on the backboard, and optical thin film is mounted on the light emitting diode matrix light source.
According to another object of the present invention, a kind of liquid crystal indicator more is provided, comprise that at least an above-mentioned backlight module and a display panels be located on this backlight module.
By according to visual impact proportion and product specification, the light emitting diode matrix light source is divided into the number district, the mode of the light emitting diode naked core of different size scope is set respectively in these districts again, can significantly improve employing rate with the light emitting diode on batch wafer.Therefore, not only help volume production, more can effectively reduce production costs.
Description of drawings
Fig. 1 illustrates the schematic top plan view of general light-emitting diode (LED) backlight module.
Fig. 2 illustrates the schematic top plan view according to a kind of light-emitting diode (LED) backlight module of one embodiment of the present invention.
Fig. 3 illustrates the schematic top plan view according to a kind of light-emitting diode (LED) backlight module of another preferred embodiment of the present invention.
Fig. 4 illustrates the schematic top plan view according to a kind of light-emitting diode (LED) backlight module of the another preferred embodiment of the present invention.
Fig. 5 illustrates the schematic top plan view of a kind of light-emitting diode (LED) backlight module of a preferred embodiment again according to the present invention.
Fig. 6 illustrates the device schematic diagram according to a kind of LCD of one embodiment of the present invention.
Description of reference numerals
100: light-emitting diode (LED) backlight module
102: light emitting diode naked core 104: the light emitting diode naked core
200: backlight module 202: light emitting diode matrix
204: backboard 206: zone
208: zone 210: zone
212: light emitting diode naked core 214: the light emitting diode naked core
216: light emitting diode naked core 218: display panels
220: optic film set 222: liquid crystal indicator
300: backlight module 302: light emitting diode matrix
304: backboard 306: zone
308: zone 310: zone
312: light emitting diode naked core 314: the light emitting diode naked core
316: light emitting diode naked core 318: juncture area
320: juncture area 400: backlight module
402: light emitting diode matrix 404: backboard
406: zone 408: zone
410: zone 500: backlight module
502: light emitting diode matrix 504: backboard
506: LGP 508: zone
510: zone 512: zone
514: zone 516: zone
518: zone 520: light emitting diode naked core
522: light emitting diode naked core 524: the light emitting diode naked core
The specific embodiment
The present invention disclose a kind of light emitting diode matrix with and application on backlight module and liquid crystal indicator.Because this light emitting diode matrix can adopt the light emitting diode naked core of broad specification limit, therefore not only can effectively reduce cost, more have production.In order to make narration of the present invention more detailed and complete, can be with reference to the diagram of following description and cooperation Fig. 2 to Fig. 6.
Because liquid crystal display picture has certain susceptibility for the optical characteristics of light emitting diode naked core, if the light emitting diode naked core that specification limit difference is excessive is arranged in together, easily cause the brightness or the colourity inequality of picture, but if the light emitting diode naked core in the module all is limited in certain specific standard scope, pairing cost will be very high, also not have a production.Therefore, the invention provides a kind of light emitting diode matrix design, improve the bottleneck that traditional light-emitting diode (LED) backlight module development is faced.
Please refer to Fig. 2, it illustrates the schematic top plan view according to a kind of light-emitting diode (LED) backlight module of one embodiment of the present invention.Backlight module 200 mainly comprises light source and the optic film set (not illustrating) that backboard 204, light emitting diode matrix 202 are constituted, and wherein light emitting diode matrix 202 is located on the backboard 204, and optic film set then is located at the top of light emitting diode matrix 202.Backlight module 200 is applicable to liquid crystal indicator.For clearly demonstrating the design of light emitting diode matrix 202, in Fig. 2, do not show the optic film set of being located on the light emitting diode matrix 202, but can be with reference to the optic film set 220 of Fig. 6.Generally speaking, optic film set can comprise blooming pieces such as diffuser plate and brightness enhancement film.
In the present embodiment, light emitting diode matrix 202 is marked off several zones 206,208 and 210 outward in regular turn from the center, as shown in Figure 2.In the present invention, zone 208 is centered around outside the zone 206, and zone 210 then is centered around outside the zone 208.The zone 206 that is positioned at light emitting diode matrix 202 central areas also is that product specification defines most important zone for human eye vision is the sharpest, and the zone 208 of past more periphery and 210 visual impact proportion promptly successively decrease thereupon.Therefore, taking into account under vision taste and the product specification, the light emitting diode naked core 212 of original specific standard scope is being contracted to the zone 206 of only using in the center from comprehensive use whole array.On the other hand, 208 in the zone that is arranged in regional 206 peripheries is provided with another specification limit light emitting diode naked core 214 that specification limit is adjacent to zone 206 light emitting diode naked cores 212; The zone 210 that is arranged in regional 208 peripheries then is provided with another specification limit light emitting diode naked core 216 that specification limit is adjacent to zone 208 light emitting diode naked cores 214.That is to say that in light emitting diode matrix 202, different zones 206,208 and 210 is provided with the light emitting diode naked core of different size scope respectively.In the present invention, the differentiation of the specification limit of light emitting diode naked core can be according to emission wavelength, brightness or emission wavelength and the brightness of light emitting diode naked core.In one embodiment of this invention, the specification limit of light emitting diode naked core is distinguished with emission wavelength, and in specification limit the difference of the emission wavelength between the light emitting diode naked core in ± 2.5nm.In another embodiment of the present invention, the specification limit of light emitting diode naked core is distinguished with brightness, and in specification limit the luminance difference between the light emitting diode naked core in ± 5%.
In one embodiment of this invention, the equal essence of shape in zone 206,208 and 210 is symmetrical in the horizontal middle spindle and the vertical center axis of light emitting diode matrix 202.Except the rectangular area shown in this embodiment, the zone that light emitting diode matrix of the present invention marked off also can have other shapes.For example, as shown in Figure 4, the zone 406 that is positioned at the center in the light emitting diode matrix 400 is for oval, and the combination that is centered around outer zone 408, zone 406 and zone 406 is ovalize also, is centered around the then rectangular and inner edge ovalize of outer rim in outer zone 410, zone 408.
In the present invention, the width W 1 that is positioned at the zone 206 of light emitting diode matrix 202 centers preferably accounts for more than 1/2 of integral width W of light emitting diode matrix 202, and the length L 1 in zone 206 preferably accounts for more than 1/2 of integral width L of light emitting diode matrix 202.For example, if the mode according to homalographic is divided into zone 206,208 and 210 with light emitting diode matrix 202, the left and right sides width W 3 that be positioned at the homalographic zone 210 of light emitting diode matrix 202 outermost this moment respectively account for integral width W 1/10 less than, and the width W 1 in the zone 206 of the central authorities of homalographic has accounted for more than 1/2 of integral width W, to having the greatest impact of vision.Therefore, the outer peripheral areas less to visual impact, for example the light emitting diode naked core of specific standard scope can not need be used in zone 208 and 210.In this embodiment, can only the light emitting diode naked core 212 that brightness or wavelength meet the specific standard of demand most need be set on the zone 206 of central authorities, and the light emitting diode naked core 214 that is provided with inferior to the specification limit in zone 206 in the zone 208 of periphery, the 210 light emitting diode naked cores 216 that are provided with inferior to the specification limit in zone 208 in the zone again.By such design principle, in light emitting diode matrix 202,2/3rds light emitting diode naked core is replaced with the product of contiguous specification limit.
Though the zone 208 in the outside and 210 and the zone 206 of central authorities may be because of the light emitting diode naked core 212,214 and 216 that has adopted the different size scope, and have difference on luminosity or the colourity.Yet because the specification of the light emitting diode naked core that adopted is quite consistent in the same area, it is lower and be difficult for discovering the wherein difference of slight variations to the visual sensitivity of light emitting diode matrix 202 outer peripheral areas to add human eye.Therefore, can before the vision taste has anxiety, not put, use the light emitting diode naked core of more specification limits.So, can effectively reduce production costs, and help the volume production of backlight module element.
Therefore, a feature of the present invention is exactly according to visual impact proportion and product specification, and the light emitting diode matrix light source of backlight module is divided at least two zones, and the light emitting diode naked core with the different optical specification limit is arranged in the zones of different respectively again.Thus, can take into account under vision taste and the product specification, enlarge utilization rate, and then reduce cost with light emitting diode naked core on batch wafer.
In one embodiment of this invention, the region-wide traditional design that is limited in the specification limit of brightness 52.5lm to 47.5lm of a kind of backlight module can be changed to the light emitting diode naked core that the specification limit of this brightness range only is set in the zone 206 of central authorities.And in 206 the exterior lateral area 208 of zone, change brightness that a time specification limit is set light emitting diode naked core between 47.5lm to 43.5lm.Then, in outermost regional 210, the light emitting diode naked core of the brightness of a more inferior specification limit between 43.5lm to 40lm is set.In the light emitting diode matrix 202 of this embodiment, outermost regional 210 brightness be about middle section 206 brightness 84%, still be much better than existing backlight module integral body all together degree need vision taste specification greater than 75%.Under this design, present embodiment can expand to 52.5lm～40lm from traditional 52.5lm～47.5lm with the brightness specifications scope that adopts, and therefore can significantly improve the utilization rate with the light emitting diode naked core of batch wafer, further effectively reduces production costs.
The present invention also can design the arrangement of light emitting diode matrix at the wavelength specification limit in the optical specification.With the green light LED arrangement design is example, the region-wide traditional design that is limited in the specification limit of wavelength 530 ± 2.5nm of original backlight module can be changed to the light emitting diode naked core that this wavelength specification limit only is set in the zone 206 of central authorities.Then, in 206 the exterior lateral area 208 of zone, change the light emitting diode naked core that inferior wavelength specification limit is 525 ± 2.5nm is set.At last, in outermost regional 210, the wavelength specification limit that more inferior first-class is set is the light emitting diode naked core of 520 ± 2.5nm.Under the array design, present embodiment can expand to 530 ± 2.5nm～520 ± 2.5nm from 530 traditional ± 2.5nm with the green wavelength specification limit that adopts.
The mode that the present invention more can utilize obfuscation to arrange relaxes between zones of different the difference that the specification limit difference because of employed light emitting diode naked core is caused.Please refer to Fig. 3, backlight module 300 comprises light source and the optic film set (not illustrating) that backboard 304, light emitting diode matrix 302 are constituted at least, wherein light emitting diode matrix 302 is located on the backboard 304, and optic film set then is located at the top of light emitting diode matrix 302.In the present embodiment, light emitting diode matrix 302 is divided into three zones 306,308 and 310 by the mediad outside equally.And taking into account under vision taste and the product specification, the light emitting diode naked core 312 of original specific standard scope is arranged on the zone 306 of central area; Another scope light emitting diode naked core 314 that specification limit is adjacent to light emitting diode naked core 312 is arranged at zone 308; Then, another scope light emitting diode naked core 316 that specification limit is adjacent to light emitting diode naked core 314 is arranged in the zone 310.
In the present embodiment, in the juncture area 318 and 320 between two adjacent areas 306 and 308 and two adjacent areas 308 and 310, in obfuscation mosaic arrangement mode, the light emitting diode naked core of different size scope in two zones 306 and 308 or 308 and 310 that are staggered.That is, in juncture area 318, cross arrangement light emitting diode naked core 312 and 314, and in juncture area 320 cross arrangement light emitting diode naked core 314 and 316, as shown in Figure 3.Thus, can make the variation of the brightness of whole light emitting diode matrix 302 and/or colourity more smooth-going, and visually more be difficult for discovering interregional variation.
Please refer to Fig. 5, it illustrates the schematic top plan view according to a kind of light-emitting diode (LED) backlight module of another preferred embodiment of the present invention.500 1 kinds of side incident types of backlight module backlight module, this backlight module 500 mainly comprises light source and the LGP 506 that backboard 504, light emitting diode matrix 502 are constituted, wherein LGP 506 has the bottom surface that is arranged on the backboard 504 and in abutting connection with an incidence surface of this bottom surface, 502 of light emitting diode matrixs are adjacent to this incidence surface of LGP 506, and light emitting diode matrix 502 is between backboard 504 and LGP 506.In addition, more can optic film set (not illustrating) optionally be set on LGP 506, to promote the optical performance of backlight module 500 according to the product actual demand.Backlight module of the present invention 500 is applicable to liquid crystal indicator.Generally speaking, optic film set can comprise blooming pieces such as diffuser plate and brightness enhancement film.
In the present embodiment, the light emitting diode matrix 502 that will be positioned at backboard 504 each side marks off several zones 508,510 and 512 in regular turn from the center toward two ends.In the present embodiment, zone 508 is positioned at the central authorities of backboard 504 sides, and 510 in the zone of two substantial equivalences lays respectively at two sides in zone 508, and the zone 512 of two substantial equivalences then lays respectively at the outside in two zones 510, as shown in Figure 5.Light emitting diode naked core 520 correspondences of middle section 508 that are positioned at light emitting diode matrix 502 are luminous towards the middle section 514 of backlight module 500, light emitting diode naked core 522 correspondences that are arranged in the other zone 510 of the middle section 508 2 of light emitting diode matrix 502 are luminous towards the other zone 516 of the middle section 514 2 of backlight module 500, and then correspondence is luminous towards the zone 518 in 516 outsides, zone of backlight module 500 to be arranged in the light emitting diode naked core 524 of exterior lateral area 512 in zone 510 of light emitting diode matrix 502.The zone 514 that is positioned at backlight module 500 central areas also is that product specification defines most important zone for human eye vision is the sharpest, and the zone 516 of past more periphery and 518 visual impact proportion promptly successively decrease thereupon.The outer peripheral areas less to visual impact, for example the light emitting diode naked core of specific standard scope can not need be used in zone 516 and 518.Therefore, taking into account under vision taste and the product specification, the light emitting diode naked core 520 of original specific standard scope is being contracted to the middle section 508 that only uses in backlight module 500 1 sides from comprehensive use whole array.On the other hand, 510 other in the zones of zone 508 2 that are arranged in each side are provided with another specification limit light emitting diode naked core 522 that specification limit is adjacent to zone 508 light emitting diode naked cores 520; The zone 512 that is arranged in regional 510 outsides then is provided with another specification limit light emitting diode naked core 524 that specification limit is adjacent to zone 510 light emitting diode naked cores 522.That is to say that in light emitting diode matrix 502, different zones 508,510 and 512 is provided with the light emitting diode naked core of different size scope respectively.In the present invention, the differentiation of the specification limit of light emitting diode naked core can be according to emission wavelength, brightness or emission wavelength and the brightness of light emitting diode naked core.For example, in this embodiment, can only the light emitting diode naked core 520 that brightness or wavelength meet the specific standard of demand most need be set on the zone 508 of central authorities, and the light emitting diode naked core 522 that is provided with inferior to the specification limit in zone 508 in the zone 510 of periphery, the 512 light emitting diode naked cores 524 that are provided with inferior to the specification limit in zone 510 in the zone again.By such design principle, in light emitting diode matrix 502, about 2/3rds light emitting diode naked core is replaced with the product of contiguous specification limit.
Because the specification of the light emitting diode naked core that is adopted in the same area is quite consistent, it is lower and be difficult for discovering the wherein difference of slight variations to the visual sensitivity of light emitting diode matrix 502 outer peripheral areas to add human eye.Therefore, can not have under the prerequisite of anxiety, use the light emitting diode naked core of more specification limits in the vision taste.So, can effectively reduce production costs, and help the volume production of backlight module element.In one embodiment of this invention, zone 508,510 and 512 equal essence are symmetrical in the vertical center axis of light emitting diode matrix 502.
Backlight module of the present invention can be applicable on the consumer products such as various information and communication.For example, can on backlight module, organize and establish a display panels, can constitute liquid crystal indicator.For example, please refer to Fig. 6, it illustrates the device schematic diagram according to a kind of LCD of one embodiment of the present invention.Group is established a display panels 218 on the optic film set 220 of backlight module 200, promptly constitutes liquid crystal indicator 222.
By the invention described above preferred embodiment as can be known, an advantage of the present invention is exactly because this light emitting diode matrix is planned different zones according to visual impact with product specification, and the light emitting diode naked core of different size scope is located in the zones of different respectively.Therefore, when using, can improve utilization rate at the construction light emitting diode matrix widely with the light emitting diode naked core on a collection of wafer.
By the invention described above preferred embodiment as can be known, another advantage of the present invention is exactly because backlight module of the present invention has the light emitting diode matrix light source, and this light emitting diode matrix is according to visual impact proportion and product specification and mark off at least two districts, and the light emitting diode naked core of different size scope is set respectively.Therefore, can adopt specification limit,, more can effectively reduce cost so not only have production with wider range on batch wafer.
By the invention described above preferred embodiment as can be known, another advantage of the present invention is exactly because of set backlight module in the liquid crystal indicator of the present invention, its light emitting diode matrix light source production is good, and cost is cheap relatively, and therefore liquid crystal indicator of the present invention has sizable economic benefit.
Though the present invention discloses as above with a preferred embodiment; right its is not in order to limit the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking appended the claim person of defining.
Claims (39)
1. light emitting diode matrix, dividing at least has a first area and a second area, and this light emitting diode matrix comprises at least:
A plurality of first light emitting diode naked cores are located in this first area, and wherein those first light emitting diode naked cores belong to one first specification limit; And
A plurality of second light emitting diode naked cores are located in this second area, and wherein those second light emitting diode naked cores belong to one second specification limit, and this first specification limit is different with the optical specification of this second specification limit.
2. light emitting diode matrix as claimed in claim 1, wherein this first area is positioned at the central area of this light emitting diode matrix.
3. light emitting diode matrix as claimed in claim 2, wherein this second area position and is positioned at the LHA of this light emitting diode matrix outside this first area.
4. light emitting diode matrix as claimed in claim 3, wherein this first specification limit and this second specification limit are used as difference with the emission wavelength of light emitting diode naked core.
5. light emitting diode matrix as claimed in claim 4, wherein the emission wavelength difference between those first light emitting diode naked cores of this first specification limit is in ± 2.5nm, and the emission wavelength difference between those second light emitting diode naked cores of this second specification limit is in ± 2.5nm.
6. light emitting diode matrix as claimed in claim 3, wherein this first specification limit and this second specification limit are used as difference with the brightness of light emitting diode naked core.
7. light emitting diode matrix as claimed in claim 6, wherein the luminance difference between those first light emitting diode naked cores of this first specification limit is in ± 5%, and the luminance difference between those second light emitting diode naked cores of this second specification limit is in ± 5%.
8. light emitting diode matrix as claimed in claim 3 also comprises the juncture area between this first area and this second area, and in this juncture area, this first light emitting diode naked core and this second light emitting diode naked core are staggered.
9. light emitting diode matrix as claimed in claim 3, wherein the shape essence of this first area is symmetrical in a horizontal middle spindle and a vertical center axis of this light emitting diode matrix.
10. light emitting diode matrix as claimed in claim 9, wherein the shape essence of this second area is symmetrical in this horizontal middle spindle and this vertical center axis of this light emitting diode matrix.
11. light emitting diode matrix as claimed in claim 3, wherein the width of this first area account at least this light emitting diode matrix integral width 1/2, and the length of this first area account at least this light emitting diode matrix entire length 1/2.
12. a backlight module comprises at least:
One backboard;
One light emitting diode matrix light source is located on this backboard, and this light emitting diode matrix light source divided a first area and a second area at least, and wherein this light emitting diode matrix light source comprises at least:
A plurality of first light emitting diode naked cores are located in this first area, and wherein those first light emitting diode naked cores belong to one first specification limit; And
A plurality of second light emitting diode naked cores are located in this second area, and wherein those second light emitting diode naked cores belong to one second specification limit, and this first specification limit is different with the optical specification of this second specification limit; And
One optic film set is located on this light emitting diode matrix light source.
13. backlight module as claimed in claim 12, wherein this first area is positioned at the central area of this light emitting diode matrix.
14. backlight module as claimed in claim 13, wherein this second area position and is positioned at the LHA of this light emitting diode matrix outside this first area.
15. backlight module as claimed in claim 14, wherein this first specification limit and this second specification limit are done differentiation according to an optical specification of light emitting diode naked core, and this optical specification is selected from a cohort of being made up of the emission wavelength of light emitting diode naked core, brightness and combination thereof.
16. backlight module as claimed in claim 15, wherein the emission wavelength difference between those first light emitting diode naked cores of this first specification limit is in ± 2.5nm, and the emission wavelength difference between those second light emitting diode naked cores of this second specification limit is in ± 2.5nm.
17. backlight module as claimed in claim 15, wherein the luminance difference between those first light emitting diode naked cores of this first specification limit is in ± 5%, and the luminance difference between those second light emitting diode naked cores of this second specification limit is in ± 5%.
18. backlight module as claimed in claim 14 also comprises the juncture area between this first area and this second area, and in this juncture area, this first light emitting diode naked core and this second light emitting diode naked core are staggered.
19. backlight module as claimed in claim 14, wherein the shape essence of the shape of this first area and this second area is symmetrical in a horizontal middle spindle and a vertical center axis of this light emitting diode matrix.
20. backlight module as claimed in claim 14, wherein the width of this first area account at least this light emitting diode matrix integral width 1/2, and the length of this first area account at least this light emitting diode matrix entire length 1/2.
21. a liquid crystal indicator comprises at least:
One backlight module comprises at least:
One backboard;
One light emitting diode matrix light source is located on this backboard, and this light emitting diode matrix light source divided a first area and a second area at least, and wherein this light emitting diode matrix light source comprises at least:
A plurality of first light emitting diode naked cores are located in this first area, and wherein those first light emitting diode naked cores belong to one first specification limit; And
A plurality of second light emitting diode naked cores are located in this second area, and wherein those second light emitting diode naked cores belong to one second specification limit, and this first specification limit is different with the optical specification of this second specification limit; And
One optic film set is located on this light emitting diode matrix light source; And
One display panels is located on this backlight module.
22. liquid crystal indicator as claimed in claim 21, wherein this first area is positioned at the central area of this light emitting diode matrix.
23. liquid crystal indicator as claimed in claim 22, wherein this second area position and is positioned at the LHA of this light emitting diode matrix outside this first area.
24. liquid crystal indicator as claimed in claim 23, wherein this first specification limit and this second specification limit are done differentiation according to an optical specification of light emitting diode naked core, and this optical specification is selected from a cohort of being made up of the emission wavelength of light emitting diode naked core, brightness and combination thereof.
25. liquid crystal indicator as claimed in claim 23 also comprises a juncture area between this first area and this second area, and in this juncture area, this first light emitting diode naked core and this second light emitting diode naked core are staggered.
26. liquid crystal indicator as claimed in claim 23, wherein the shape essence of the shape of this first area and this second area is symmetrical in a horizontal middle spindle and a vertical center axis of this light emitting diode matrix.
27. liquid crystal indicator as claimed in claim 23, wherein the width of this first area account at least this light emitting diode matrix integral width 1/2, and the length of this first area account at least this light emitting diode matrix entire length 1/2.
28. a backlight module comprises at least:
One backboard;
One LGP, this LGP have the bottom surface that is arranged on this backboard and in abutting connection with an incidence surface of this bottom surface; And
One light emitting diode matrix light source contiguous being arranged at this incidence surface, and this light emitting diode matrix light source divided a first area and a second area at least, and wherein this light emitting diode matrix light source comprises at least:
A plurality of first light emitting diode naked cores are located in this first area, and wherein those first light emitting diode naked cores belong to one first specification limit; And
A plurality of second light emitting diode naked cores are located in this second area, and wherein those second light emitting diode naked cores belong to one second specification limit, and this first specification limit is different with the optical specification of this second specification limit.
29. backlight module as claimed in claim 28, wherein this first area is positioned at the central area of this light emitting diode matrix.
30. backlight module as claimed in claim 29, wherein this second area is divided into two parts of substantial equivalence and distinguishes two sides of position outside this first area, and is positioned at the LHA of this light emitting diode matrix.
31. backlight module as claimed in claim 30, wherein this first specification limit and this second specification limit are done differentiation according to an optical specification of light emitting diode naked core, and this optical specification is selected from a cohort of being made up of the emission wavelength of light emitting diode naked core, brightness and combination thereof.
32. backlight module as claimed in claim 30, wherein this first area and this second area essence are symmetrical in a vertical center axis of this light emitting diode matrix.
33. backlight module as claimed in claim 28 comprises an optical diaphragm group more at least, is located on this LGP.
34. a liquid crystal indicator comprises at least:
One backlight module comprises at least:
One backboard;
One LGP, this LGP have the bottom surface that is arranged on this backboard and in abutting connection with an incidence surface of this bottom surface; And
One light emitting diode matrix light source contiguous being arranged at this incidence surface, and this light emitting diode matrix light source divided a first area and a second area at least, and wherein this light emitting diode matrix light source comprises at least:
A plurality of first light emitting diode naked cores are located in this first area, and wherein those first light emitting diode naked cores belong to one first specification limit; And
A plurality of second light emitting diode naked cores are located in this second area, and wherein those second light emitting diode naked cores belong to one second specification limit, and this first specification limit is different with the optical specification of this second specification limit; And
One display panels is located on this backlight module.
35. liquid crystal indicator as claimed in claim 34, wherein this first area is positioned at the central area of this light emitting diode matrix.
36. liquid crystal indicator as claimed in claim 35, wherein this second area is divided into two parts of substantial equivalence and distinguishes two sides of position outside this first area, and is positioned at the LHA of this light emitting diode matrix.
37. liquid crystal indicator as claimed in claim 36, wherein this first specification limit and this second specification limit are done differentiation according to an optical specification of light emitting diode naked core, and this optical specification is selected from a cohort of being made up of the emission wavelength of light emitting diode naked core, brightness and combination thereof.
38. liquid crystal indicator as claimed in claim 36, wherein this first area and this second area essence are symmetrical in a vertical center axis of this light emitting diode matrix.
39. liquid crystal indicator as claimed in claim 34 comprises an optical diaphragm group more at least, is located on this LGP, and between this display panels and this LGP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810214881A CN101666429A (en) | 2008-09-03 | 2008-09-03 | Light-emitting diode matrix, backlight module with same and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810214881A CN101666429A (en) | 2008-09-03 | 2008-09-03 | Light-emitting diode matrix, backlight module with same and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101666429A true CN101666429A (en) | 2010-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810214881A Pending CN101666429A (en) | 2008-09-03 | 2008-09-03 | Light-emitting diode matrix, backlight module with same and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101666429A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012012959A1 (en) * | 2010-07-30 | 2012-02-02 | 深圳市华星光电技术有限公司 | Backlight module |
| WO2012012957A1 (en) * | 2010-07-30 | 2012-02-02 | 深圳市华星光电技术有限公司 | Back light module and liquid crystal display device |
| DE102020114325A1 (en) | 2020-05-28 | 2021-12-02 | Minebea Mitsumi Inc. | Backlight unit for liquid crystal displays |
-
2008
- 2008-09-03 CN CN200810214881A patent/CN101666429A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012012959A1 (en) * | 2010-07-30 | 2012-02-02 | 深圳市华星光电技术有限公司 | Backlight module |
| WO2012012957A1 (en) * | 2010-07-30 | 2012-02-02 | 深圳市华星光电技术有限公司 | Back light module and liquid crystal display device |
| US8610843B2 (en) | 2010-07-30 | 2013-12-17 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and liquid crystal display apparatus |
| DE102020114325A1 (en) | 2020-05-28 | 2021-12-02 | Minebea Mitsumi Inc. | Backlight unit for liquid crystal displays |
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Open date: 20100310 |